A lot of people don't know what the diaphragm pump is and what the diaphragm pump is. Today, the diaphragm metering pump manufacturer koyu machinery introduces you to the difference between the two pumps.

1. High cost performance, generally applicable to the water treatment industry with low pressure

Adopt eccentric mechanism. There is no leakage on the whole, which can be placed in a medicine tank or pipe.

3. Cast aluminum shell, with high heat dissipation performance and light weight, suitable for all kinds of acid and alkali medicine liquid, non-toxic and tasteless.

4. Contact medium pump head for PVC, optional PTFE, and stainless steel material.

5. The flow can also be quantitatively exported when the pump is running or stopping.

6 suppression, diaphragm metering pump for multi-layer composite structure, the first layer of super toughness Teflon acid membrane, the second layer of EPDM rubber elasticity and thickness of the third layer 3 mm SUS304 support core, the fourth layer of the reinforced nylon fiber reinforcing, 5 USES the fulfillment of EPDM elastic rubber complete package, which can effectively improve the service life of the diaphragm.

Scope: 0-500 l/H

Pressure range: 0-1.0mpa

Drive mode: motor driven

Control mode: manual and automatic control

The type of metering pump is mainly to look at the medium of transport, the diaphragm type metering pump:

Because the diaphragm can do corrosion resistance and no leakage, but because of the limitation of material of ptfe diaphragm pump temperature should not exceed 260 degrees, the actual temperature is generally not more than 200 degrees, if use metal diaphragm, heat-resistant performance better, but the fatigue life of the diaphragm is not to say, and prices are relatively high. The plunger pump due to the packing easy to leak, so the inflammable and explosive toxic large expensive medium is not very suitable for use, some media on plunger rod has certain corrosion resistance, between plunger and packing also can have wear, use after a long time will be in the column leave traces, especially in the amount of time are more likely to leak.

Of course, the medium is just one of the elements, and you need to know the flow, pressure, temperature, viscosity, gravity, content and so on. Mechanical diaphragm type metering pump: within a 1000l/h flow, within the pressure of 1.2mpa, the measurement accuracy is within 2.5%. Hydraulic diaphragm type metering pump: the flow rate is 0.5~ 300000l/h, within the pressure of 25mpa, within the measurement accuracy of 1. Plunger type metering pump: flow of 0.2%-300000l/h, within the pressure of 65mpa, within the measurement accuracy of 1.